andrew wrote:
> Booting a ZFS pool from an EFI labelled disk has never been supported. I 
> suspect they have just added checking for an EFI labelled disk in a recent 
> build of beadm.
>
> Can you possibly post the output of these commands:
>
> fdisk /dev/rdsk/c5t0d0p0
> fdisk /dev/rdsk/c5t1d0s0
>   
t0 shows
      Partition   Status    Type          Start   End   Length    %
      =========   ======    ============  =====   ===   ======   ===
          1       Active    Solaris2          1  30399    30399    100
t1 shows
      Partition   Status    Type          Start   End   Length    %
      =========   ======    ============  =====   ===   ======   ===
          1                 EFI               0  30400    30401    100
Obviously when I added the second disk, it created it with an EFI 
label.  I don't remember making any such decision, I think it's done 
this as a default action.
> I suspect what you have is an SMI labelled disk (c5t0d0) and an EFI labelled 
> disk (c5t1d0). How did you add the second disk to the root pool?
>   
I think you're spot on.  I just did `zpool attach rpool device'.  Seems 
like it's worked before just by chance.
> (Bootadm should be printing the reason for the failure. Users should not be 
> expected to activate secret debugging options just to find out why a command 
> failed).
>   
Absolutely.  I half remembered this discussion, and went looking for the 
magic environment variable without success.  (Once I saw the error 
message, I also went googling, but couldn't spot the discussion, now 
it's been confirmed I'll go looking again.)

I'm tempted to just detach the device, try the activate, reboot into the 
new system, fdisk the second device by hand, and re-attach.  Like I say, 
it's only a workstation, not a production machine.

Rob

-- 
E-Mail: [EMAIL PROTECTED]               PHONE:  +44 24 7652 3037
Rob McMahon, IT Services, Warwick University, Coventry, CV4 7AL, England

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